ALEXANDRIA, Va., March 5 -- United States Patent no. 12,241,497, issued on March 4, was assigned to APEX BRANDS INC. (Apex, N.C.).
"Chalk box with improved end hook grip" was invented by Cecil Wilson (Sandford, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An end hook may include a stem portion extending in a first plane from a proximal end to a distal end and an engaging portion. The end hook may be operably coupled to the measuring device at the proximal end. The engaging portion may be defined by a set of teeth having external lateral edges that define a hook width therebetween. The engaging portion may extend away from the stem portion by an engaging length. Each of the teeth may include a portion ...